﻿using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace library
{
    public partial class book_manage : Form
    {
        public book_manage()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            up_stage f=new up_stage();
            f.Show();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            up_stage f = new up_stage();
            f.Show();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            book_in f = new book_in();
            f.Show();
        }

        private void button4_Click(object sender, EventArgs e)
        {
            book1_in f = new book1_in();
            f.Show();
            this.Close();
        }
    }
}
